1.Bluetooth specification:2.0 , rang 0-10 m.
2.Complete bluetooth wireless installation.
3.USB port for software update and charge.  
4.answer/end/reject a call ,Voice dialing , last call redialing , and call switchi.    
5.DSP technology, Full duplex, noise and echo suppression.
6.with 600 mAh Li-ion Battery to provide typical standby time of more than 5days, talking time of 6 hours .
7.Built-in high intelligent microphone and powerful speaker.
8.Can scroll the 20 groups of incoming calls and store 200 groups number then call back.            
9.Super bright LCM caller English name display and caller ID